NCIt definition : Proteasome subunit beta type-5 (263 aa, 28 kDa) is encoded by the human PSMB5 gene.
This protein plays a role in proteasomal protein degradation.;
NCIt note : Proteasome subunit beta type-5 is responsible of the chymotrypsin-like activity of
the proteasome and is one of targets for the proteasome inhibitor bortezomib. (UniProt)
Proteasome subunit beta type-5 can be displaced by the equivalent immune-specific
subunit PSMB8. (UniProt);